.sect .text; .sect .rom; .sect .data; .sect .bss; .sect .text .sect .text .define rck~ .extern trp~ ! $Header$ ERANGE = 1 rck~: mov (sp)+,r1 cmp (sp),(r0) blt 1f cmp (sp),02(r0) ble 2f 1: mov $ERANGE,-(sp) jsr pc,trp~ 2: jmp (r1)